def __init__(self, text):
"""Set up the encoder with the input text.
This will encode the text,
and create a matrix with the resulting codewords"""
enc = TextEncoder()
codewords = enc.encode(text)
self.width = 0
self.height = 0
matrix_size = enc.mtx_size
self.matrix = [[None] * matrix_size for _ in range(0, matrix_size)]
placer = DataMatrixPlacer()
placer.place(codewords, self.matrix)
